<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域  -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--  用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!--  修改按钮  -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!--  删除按钮  -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!--  分配角色按钮   -->
            <el-tooltip effect="dark" content="分配角色" placement="top-end" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--  分页区域  -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!--  添加用户的对话框  -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!--  内容主体区域    -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--  底部区域    -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--  修改用户的对话框  -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>
<script>
  export default {
    data () {
      // 验证邮箱的规则
      var checkEmail = (rule, value, callback) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) {
          // 合法的邮箱
          return callback()
        }
        // 不合法的邮箱
        callback(new Error('请输入合法的邮箱'))
      }
      // 验证手机号的规则
      var checkMobile = (rule, value, callback) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          // 合法的手机号
          return callback()
        }
        // 不合法的手机号
        callback(new Error('请输入合法的手机号'))
      }

      return {
        // 获取用户列表的参数对象
        queryInfo: {
          query: '',
          // 当前的页数
          pagenum: 1,
          // 当前每页显示多少条数据
          pagesize: 2
        },
        userlist: [],
        total: 0,
        // 控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加表单的验证规则对象
        addFormRules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '密码的长度在3~10个字符之间', trigger: 'blur' }
          ],
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ]
        },
        // 控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        // 查询到的用户信息对象
        editForm: {},
        // 修改表单的校验规则对象
        editFormRules: {
          email: [
            { required: true, message: '请输入用户的邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
            ],
          mobile: [
            { required: true, message: '请输入用户的手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ]
        }
      }
    },
    created () {
      this.getUserList()
    },
    methods: {
      async getUserList () {
        const { data: res } = await this.$http.get('users', { params: this.queryInfo })
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户列表失败')
        }
        this.userlist = res.data.users
        this.total = res.data.total
      },
      // 监听 pagesize 改变的事件
      handleSizeChange (newSize) {
        // console.log(newSize)
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      // 监听 页码值 改变的事件
      handleCurrentChange (newPage) {
        // console.log(newPage)
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      // 监听 switch 开关状态的改变
      async userStateChanged (userinfo) {
        // console.log(userinfo)
        const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功!')
      },
      // 监听添加用户对话框的关闭事件
      addDialogClosed () {
       this.$refs.addFormRef.resetFields()
      },
      // 点击按钮添加新用户
      addUser () {
        this.$refs.addFormRef.validate(async valid => {
          // console.log(valid)
          if (!valid) return
          // 可以发起添加用户的网络请求
          const {data:res} = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败')
          }
          this.$message.success('添加用户成功')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户列表数据
          await this.getUserList()
        })
      },
      // 展示编辑用户的对话框
      async showEditDialog (id) {
        this.editDialogVisible = true
        // console.log(id)
        const {data:res} = await this.$http.get('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('查询用户数据失败!')
        }
        // 查询成功把查询到的数据赋值给 editForm
        this.editForm = res.data
      },
      // 监听修改用户对话框的关闭事件
      editDialogClosed () {
        this.$refs.editFormRef.resetFields()
      },
      // 修改用户信息并提交
      editUserInfo () {
        this.$refs.editFormRef.validate(async valid => {
          // console.log(valid)
          if (!valid) { return }
          // 发起用户信息的数据请求
          const { data: res } = await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email, mobile: this.editForm.mobile
          })
          if (res.meta.status !== 200) {
            return this.$message.error('更新用户信息失败')
          }
          // 关闭对话框
          this.editDialogVisible = false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          this.$message.success('更新数据成功')
        })
      },
      // 根据id删除对应的用户信息
      async removeUserById (id) {
        // console.log(id)
        // 询问用户是否删除数据
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        // 如果用户确认删除则返回字符串 confirm
        // 如果用户取消删除则返回字符串 cancel
        // console.log(confirmResult)
        if (confirmResult !== 'confirm') {
          return this.$message.info('已经取消删除!')
        }
        const {data:res} = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('删除用户失败!')
        }
        console.log(res)
        this.$message.success('删除用户成功!')
        this.getUserList()
      }
    }
  }
</script>
<style lang="less" scoped>

</style>
